BISMARCK, N.D. -- New requirements will hopefully prevent radioactive filter socks from being illegally transported and dumped in the oil patch. Starting June 1, operators of all 412 saltwater ...

Oilfield filter socks, used to filter wastewater at drilling sites, have turned up in some odd corners of North Dakota, including a roadside, an Indian Reservation, a city garbage can, and tucked ...

WILLISTON, N.D. – A contractor that stockpiled filter socks in McKenzie County last year paid a $16,000 fine, with $87,000 in fines dismissed, and agreed to no longer operate in North Dakota.

WILLISTON, N.D. - A contractor that stockpiled filter socks in McKenzie County last year paid a $16,000 fine, with $87,000 in fines dismissed, and agreed to no longer operate in North Dakota.

WATFORD CITY, N.D. — State health officials continue to investigate thousands of pounds of potentially radioactive filter socks and debris stored at an oil field service company site in rural McKenzie ...

This March 3, 2014 file photo provided by the North Dakota Health Department shows bags full of radioactive oil filter socks, the nets that strain liquids during the oil production process, piled in ...